如何在不降低 fps 的情况下统一检查互联网连接

Question

我正在 Unity 中从事 VR 项目。在这个项目中，我们有 websockets。对于某些互联网问题，我们想检查 websocket 是否仍然存在或出错，如果是这种情况，我们想检查互联网连接。如果互联网再次启动，则需要重新连接到 websocket 或重新初始化它。我们现在在更新功能中使用每秒触发的计时器来执行此操作，但每秒都会有一个 fps 下降以检查互联网。还有其他解决方法吗？

public float waitTime = 1f;
private float timer;

private void Update()
{
    timer += Time.deltaTime;
    if (timer > waitTime)
    {
        //check if websocket is alive or that it must re initialized
        if (webSocket != null) //check if websocket was allready initialized 
        {
            if (isSocketError && Application.internetReachability != NetworkReachability.NotReachable) // check if an error was given by the websocket and ethernet is available again
            {
                CreateWebsocketSession(sessionId);
            }
            else if ((!webSocket.IsAlive || !webSocket.IsConnected) && Application.internetReachability != NetworkReachability.NotReachable) // check if websocket is alive and internet is available.
            {
                CreateWebsocketSession(sessionId);
            }
        }


        timer = 0f;
    }
}

Answer 1

When you call a function, it runs to completion before returning. This effectively means that any action taking place in a function must happen within a single frame update

我通常会检查互联网连接 ping Google（Application.internetReachability 不是确定实际连接的好方法：docs）

IEnumerator checkInternetConnection(Action<bool> action){
     WWW www = new WWW("http://google.com");
     yield return www;//wait for execution of this row, executed at Time x
     if (www.error != null) {//executed at time x+y, where y is the execution time(i think where you have drops)
         action (false);
     } else {
         action (true);//got internet here
     }
 }

在您的情况下，使用带收益率的 Coroutine() 而不是 Update()

如何在不降低 fps 的情况下统一检查互联网连接

How to check internet connection in unity without fps drop

connection

frame-rate

unity3d

websocket